Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Documents / TextTreeExtractElementUndoUnit.cs / 1 / TextTreeExtractElementUndoUnit.cs
//---------------------------------------------------------------------------- // // File: TextTreeExtractElementUndoUnit.cs // // Description: Undo unit for TextContainer.ExtractElement calls. // // History: // 03/03/2004 : benwest - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.ExtractElement calls. internal class TextTreeExtractElementUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a new undo unit instance. internal TextTreeExtractElementUndoUnit(TextContainer tree, TextTreeTextElementNode elementNode) : base(tree, elementNode.GetSymbolOffset(tree.Generation)) { _symbolCount = elementNode.SymbolCount; _type = elementNode.TextElement.GetType(); _localValues = LocalValueEnumeratorToArray(elementNode.TextElement.GetLocalValueEnumerator()); _resources = elementNode.TextElement.Resources; // Table requires additional work for storing its Columns collection if (elementNode.TextElement is Table) { _columns = TextTreeDeleteContentUndoUnit.SaveColumns((Table)elementNode.TextElement); } } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods // Called by the undo manager. Restores tree state to its condition // when the unit was created. Assumes the tree state matches conditions // just after the unit was created. public override void DoCore() { TextPointer start; TextPointer end; TextElement element; VerifyTreeContentHashCode(); start = new TextPointer(this.TextContainer, this.SymbolOffset, LogicalDirection.Forward); end = new TextPointer(this.TextContainer, this.SymbolOffset + _symbolCount - 2, LogicalDirection.Forward); // Insert a new element. element = (TextElement)Activator.CreateInstance(_type); element.Reposition(start, end); // Restore local resources element.Resources = _resources; // Move end into the scope of the new element. end.MoveToNextContextPosition(LogicalDirection.Backward); // Then restore local property values. // this.TextContainer.SetValues(end, ArrayToLocalValueEnumerator(_localValues)); if (element is Table) { TextTreeDeleteContentUndoUnit.RestoreColumns((Table)element, _columns); } } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // Count of symbols covered by the extracted TextElement, including its 2 edges. private readonly int _symbolCount; // Type of the extracted TextElement. private readonly Type _type; // Collection of all local property values set on the extracted TextElement. private readonly PropertyRecord []_localValues; // Resources defined locally on the TextElement private readonly ResourceDictionary _resources; // TableColumns collection private readonly TableColumn[] _columns; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: TextTreeExtractElementUndoUnit.cs // // Description: Undo unit for TextContainer.ExtractElement calls. // // History: // 03/03/2004 : benwest - Created // //--------------------------------------------------------------------------- using System; using MS.Internal; namespace System.Windows.Documents { // Undo unit for TextContainer.ExtractElement calls. internal class TextTreeExtractElementUndoUnit : TextTreeUndoUnit { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors // Creates a new undo unit instance. internal TextTreeExtractElementUndoUnit(TextContainer tree, TextTreeTextElementNode elementNode) : base(tree, elementNode.GetSymbolOffset(tree.Generation)) { _symbolCount = elementNode.SymbolCount; _type = elementNode.TextElement.GetType(); _localValues = LocalValueEnumeratorToArray(elementNode.TextElement.GetLocalValueEnumerator()); _resources = elementNode.TextElement.Resources; // Table requires additional work for storing its Columns collection if (elementNode.TextElement is Table) { _columns = TextTreeDeleteContentUndoUnit.SaveColumns((Table)elementNode.TextElement); } } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods // Called by the undo manager. Restores tree state to its condition // when the unit was created. Assumes the tree state matches conditions // just after the unit was created. public override void DoCore() { TextPointer start; TextPointer end; TextElement element; VerifyTreeContentHashCode(); start = new TextPointer(this.TextContainer, this.SymbolOffset, LogicalDirection.Forward); end = new TextPointer(this.TextContainer, this.SymbolOffset + _symbolCount - 2, LogicalDirection.Forward); // Insert a new element. element = (TextElement)Activator.CreateInstance(_type); element.Reposition(start, end); // Restore local resources element.Resources = _resources; // Move end into the scope of the new element. end.MoveToNextContextPosition(LogicalDirection.Backward); // Then restore local property values. // this.TextContainer.SetValues(end, ArrayToLocalValueEnumerator(_localValues)); if (element is Table) { TextTreeDeleteContentUndoUnit.RestoreColumns((Table)element, _columns); } } #endregion Public Methods //------------------------------------------------------ // // Private Fields // //------------------------------------------------------ #region Private Fields // Count of symbols covered by the extracted TextElement, including its 2 edges. private readonly int _symbolCount; // Type of the extracted TextElement. private readonly Type _type; // Collection of all local property values set on the extracted TextElement. private readonly PropertyRecord []_localValues; // Resources defined locally on the TextElement private readonly ResourceDictionary _resources; // TableColumns collection private readonly TableColumn[] _columns; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PromptStyle.cs
- ReadOnlyAttribute.cs
- BatchParser.cs
- XmlSchemaInfo.cs
- LinqDataSourceInsertEventArgs.cs
- SHA384Managed.cs
- SerializationHelper.cs
- KnownBoxes.cs
- TrackingProfileSerializer.cs
- TrackingMemoryStreamFactory.cs
- SplineKeyFrames.cs
- SoapInteropTypes.cs
- XmlCharacterData.cs
- XsdCachingReader.cs
- XPathDocumentNavigator.cs
- Group.cs
- TextInfo.cs
- CounterSetInstanceCounterDataSet.cs
- XmlSchemaSimpleContent.cs
- DataGridViewCell.cs
- ControlCodeDomSerializer.cs
- FieldTemplateUserControl.cs
- OutOfMemoryException.cs
- InputLanguageProfileNotifySink.cs
- Transform3DCollection.cs
- CompiledXpathExpr.cs
- Internal.cs
- ParameterRetriever.cs
- Hex.cs
- X509ThumbprintKeyIdentifierClause.cs
- SelectionProcessor.cs
- UnionCodeGroup.cs
- SelectionGlyph.cs
- ZipPackage.cs
- PerfCounterSection.cs
- VisualProxy.cs
- TextBounds.cs
- BCryptHashAlgorithm.cs
- SqlClientWrapperSmiStreamChars.cs
- ToolStripControlHost.cs
- Char.cs
- ProxyAttribute.cs
- ToolboxItem.cs
- DataServiceQueryProvider.cs
- Int32CollectionValueSerializer.cs
- BaseValidator.cs
- CodeCompileUnit.cs
- FontCacheLogic.cs
- PagerSettings.cs
- SqlProvider.cs
- HwndTarget.cs
- ArraySegment.cs
- UpDownEvent.cs
- UnsafeNativeMethods.cs
- ImageSourceValueSerializer.cs
- FileDialogCustomPlace.cs
- DataBoundLiteralControl.cs
- UnsafeNativeMethodsMilCoreApi.cs
- XmlSchemaImporter.cs
- SimplePropertyEntry.cs
- XmlSchemaAttributeGroup.cs
- MarkupObject.cs
- DisplayInformation.cs
- Bind.cs
- NonParentingControl.cs
- PrimaryKeyTypeConverter.cs
- ExpressionBindingCollection.cs
- SingleQueryOperator.cs
- SqlEnums.cs
- ContainerFilterService.cs
- RMPermissions.cs
- MimeReturn.cs
- InputScopeAttribute.cs
- Gdiplus.cs
- PrintingPermissionAttribute.cs
- Rijndael.cs
- ValidateNames.cs
- ObjectList.cs
- DecoderReplacementFallback.cs
- VectorConverter.cs
- Label.cs
- StateChangeEvent.cs
- LinkArea.cs
- SystemIPGlobalStatistics.cs
- LexicalChunk.cs
- StringSorter.cs
- ScrollData.cs
- ListViewCommandEventArgs.cs
- SessionPageStateSection.cs
- EndPoint.cs
- Storyboard.cs
- ISAPIRuntime.cs
- UICuesEvent.cs
- EventLogLink.cs
- BindingMAnagerBase.cs
- PersonalizationStateInfo.cs
- PerformanceCounterPermission.cs
- CompilerWrapper.cs
- DataGridCell.cs
- Variant.cs